如何使用cron启动exec（）PHP命令但不运行其中2个？

Question

I just can't figure this out. I have a script that gets data from Facebook API and this script runs all the time. (using set_time_limit(0); )

However, sometimes the Facebook API gives errors and stops the script. Therefor, I would like to have a cron task every 5 minutes or so that checks to see if the script is still running and if not, starts it again.

I tried several things but it looks like I cannot run a exec() command from a cron job because of different user rights or something? How would you guys do this?

I use CentOS and PHP 5.3+

Answer 1

Set up the cron under a different user (say, root), which will get around any rights issues. However, PeeHaa makes a good point: if this is a cron script, there's no reason to use exec, as exec's job is to send commands out to the OS... these commands can be run directly from the crontab rather than having cron execute a php file.